Left Margin Home Position Adjustment; End Of Ribbon Check; End-Of-Ribbon Adjustment - Wang DW/OS-20 Maintenance Manual

Daisy printer
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5.~.1.1.19
Left Margin Horne Position Adjustment
1.
Loosen
Moving
width.
screw that holds
the
photo
flag
Moving it right
the photo flag (see figure 5-19).
towards
the
left
increases
the
decreases margin width.
3305
left margin
2.
Slide the photo flag from side-to-side until left margin is 0.55
+
0.016 inch (1.4 cm) from left side.
It
may be necessary to repeatly
re-cue the document and re-adjust the flag until the left margin is
correct.
Fine adjustments can be made by loosening the four carriage
motor mounting screws and turning the motor slightly.
NOTE
The Printer
diagnosti~
(figure 8-8) can
be used for alignment check (Chapter 8).
5.2.1.1.20
End of Ribbon Check
1.
Use a test ribbon cartridge.
To make a test cartridge,
cut the ribbon on a used cartridge so that the metal spring
in the sensor pocket reflects the LED light.
2.
T~sert
test cartridge in system.
3.
Turn on system and load OS software •
4.
Observe that the "Change Ribbon" LED on the printer control keyboard
is illuminated.
If the LED is not illuminated, adjust sensor.
NOTE
A method of checking that the sensor is
good;
use
any
light
reflecting
flat
metal
tool,
such
as
feeler
gauge
or
screwdriver tip, in front of the sensor
to
activate
the
change-ribbon
light.
This may be
used
in conjunct ion with
the diagnostic - Display and Keyboard -
Chapter 8.
5.2.1.1.21
End-of-Ribbon Adjustment
1.
Loosen mounting screws on sensor.
2 •
NOTE
Move carriage over hole in cross frame
so that a screw driver can be used to
loosen the screws on bottom of sensor.
Adjust sensor so that its active side is parallel to the pocket
in
the ribbon.
3.
Repeat check to be sure change-ribbon panel LED illuminates.
5-25

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